package com.xwm93up.threadsecurity;

import java.util.concurrent.Callable;

/**
 * @Description: 并发下线程不安全demo
 * @Author: xwm93up
 * @Since: 2022/5/13 16:01
 */
public class ThreadUnSecurity {
    static int tickets = 10;
    class SellTickets implements Runnable {

        @Override
        public void run() {
            // 未加同步锁产生脏数据
            while (tickets > 0) {
                System.out.println(Thread.currentThread().getName() + "---->售出第: " + tickets + "票");
                tickets--;
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            if (tickets < 0) System.out.println(Thread.currentThread().getName() + "--->售票结束!");
        }
    }

    public static void main(String[] args) {
        SellTickets sellTickets = new ThreadUnSecurity().new SellTickets();
        Thread thread1 = new Thread(sellTickets, "1号窗口");
        Thread thread2 = new Thread(sellTickets, "2号窗口");
        Thread thread3 = new Thread(sellTickets, "3号窗口");
        Thread thread4 = new Thread(sellTickets, "4号窗口");

        thread1.start();
        thread2.start();
        thread3.start();
        thread4.start();
    }
}
